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Proper or sound condition.
(noun)
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Mental or emotional state; spirits: was in fine fettle.
(noun)
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Metallurgy Loose sand or ore used to line the hearth of a reverberatory furnace in preparation for pouring molten metal.
(noun)
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Metallurgy To line the hearth of (a reverberatory furnace) with loose sand or ore in preparation for pouring molten metal.
(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.